Golden-winged Cacique
Cacicus chrysopterus
Male golden-winged caciques are about 21 cm (8.3 in) long and females about 19 cm (7.5 in). Males weigh about 35 to 47 g (1.2 to 1.7 oz) and females about 30 to 34 g (1.1 to 1.2 oz). The sexes have the same plumage. Adults are almost entirely black. Their lower rump and their median and inner greater wing coverts are bright yellow. They have a pearly white to yellow iris, a pale bluish gray bill, and black legs and feet. Juveniles are duller overall than adults and have dark eyes. Voice: Male golden-winged caciques display on a perch by singing and "bowing". Their song is an "unexpected and varied, musical rrrreee-chiroo, whooo, tooweetooweetoowee-teeeeay (very high-pitched) whooweet, whooway, teeoo...". Its calls include a "mewing eyehh or thin, slightly upslurred whee".
ID text from Wikipedia, CC BY-SA 4.0
Red-rumped Cacique
Cacicus haemorrhous
Male red-rumped caciques average 29 cm (11 in) long and 96.5 g (3.4 oz). Females average 25 cm (9.8 in) long and weigh 62 to 74 g (2.2 to 2.6 oz). The sexes have essentially the same plumage though females are overall duller than males. Adults of the nominate subspecies C. h. haemorrhous are mostly glossy black with a bright red lower back and rump. Males have a pale blue iris and females a brownish blue iris. Both sexes have an ivory-colored bill and black legs and feet. Juveniles resemble adult females. Subspecies C. h. Voice: The red-rumped cacique has a "oud, complex and varied repertoire of songs and calls, particularly among males". They have been described as an "unstructured series of high, hoarse sreek sreek... notes (not unlike barking of small dog)." When alarmed all the members of a colony give "a loud harsh kak-kak-kak.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Golden-winged Cacique and Red-rumped Cacique.